Root question or theory ?about marshmallow update

[andriodadmirer]

hello this is android andmirer

i just got this phone about a week ago

i have an idea, but need feedback about it please !

what if you update to marshmallow, then temp root with king root,

then download online nandroid backup app from play store

choose to do a full twrp backup

then if we downgraded through the kdz files again to lolipop
and installed twrp again would this backup work through twrp

and if we made a rom from that back up couldnt we flash it through that twrp as well ????

 

[kcarden]

Why dont you try it and find out? You can always kdz back if it doesnt work.

Basically the update, updates the bootloader(yay!!! Fastboot!) but im not sure if the mm system relies on the bootloader being the same version. I can say that rollback isnt a problem as anyone can just kdz back to stock h631 lp.

 

[joethe 1]

I MADE A back up of MM and downgraded to lollipop and tried to restore the back up and it just bootloop now got to start over